The company is now contending that its intellectual property has been infringed upon by Facebook's "using a number of the innovative security, user interface, and functionality enhancing features that made BlackBerry's products such a critical and commercial success in the first place," according to The Verge.

Some of those interface elements are as broad as notification design, the displaying of message timestamps, and the ability to tag friends and family in photos.

BlackBerry is seeking "redress for the harm caused by Defendants' unlawful use of BlackBerry's intellectual property," which may include injunctive relief and monetary damages, according to the complaint.